This change makes use of the devm_gpiochip_add_data() function. With this
the gpiochip_remove() function can be removed, and the
adp5589_gpio_remove() function as well.
The kpad->export_gpio variable is also redundant now, and has been removed.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20201112074308.71351-5-alexandru.ardelean@analog.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is currently just dead code. It's from around a time when
platform-data was used, and a board could hook it's own special callback
for setup/teardown, and a private object (via 'context').
This change removes it, as there are no more users in mainline for this.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20201112074308.71351-4-alexandru.ardelean@analog.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This change makes use of the devm_input_allocate_device() function, which
gets rid of the input_free_device() and input_unregister_device() calls.
When a device is allocated via input_allocate_device(), the
input_register_device() call will also be device-managed, so there is no
longer need to manually call unregister.
Also, the irq is allocated with the devm_request_threaded_irq(), so with
these two changes, the adp5589_keypad_remove() function is no longer
needed.
This cleans up the error & exit paths.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20201112074308.71351-3-alexandru.ardelean@analog.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This removes the need to manually free the kpad object and cleans up some
exit/error paths. The error path cleanup should reduce the risk of any
memory leaks with this object.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20201112074308.71351-2-alexandru.ardelean@analog.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v5.9' into next
Sync up with mainline to bring in the latest DTS files.
Fixes the following W=1 kernel build warning(s):
drivers/input/keyboard/samsung-keypad.c: In function ‘samsung_keypad_irq’:
drivers/input/keyboard/samsung-keypad.c:149:15: warning: variable ‘val’ set but not used [-Wunused-but-set-variable]
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201112110204.2083435-3-lee.jones@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fixes the following W=1 kernel build warning(s):
drivers/input/keyboard/cros_ec_keyb.c:72: warning: cannot understand function prototype: 'struct cros_ec_bs_map '
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Link: https://lore.kernel.org/r/20201104162427.2984742-8-lee.jones@linaro.org
[dtor: fixed up docbook comments for cros_ec_keyb structure as well]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fixes the following W=1 kernel build warning(s):
drivers/input/keyboard/gpio_keys.c:119: warning: Function parameter or member 'dev' not described in 'get_bm_events_by_type'
drivers/input/keyboard/gpio_keys.c:119: warning: Excess function parameter 'input' description in 'get_bm_events_by_type'
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201104162427.2984742-12-lee.jones@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fixes the following W=1 kernel build warning(s):
drivers/input/keyboard/pmic8xxx-keypad.c:106: warning: Function parameter or member 'num_rows' not described in 'pmic8xxx_kp'
drivers/input/keyboard/pmic8xxx-keypad.c:106: warning: Function parameter or member 'num_cols' not described in 'pmic8xxx_kp'
drivers/input/keyboard/pmic8xxx-keypad.c:106: warning: Function parameter or member 'input' not described in 'pmic8xxx_kp'
drivers/input/keyboard/pmic8xxx-keypad.c:106: warning: Function parameter or member 'regmap' not described in 'pmic8xxx_kp'
drivers/input/keyboard/pmic8xxx-keypad.c:106: warning: Function parameter or member 'key_sense_irq' not described in 'pmic8xxx_kp'
drivers/input/keyboard/pmic8xxx-keypad.c:106: warning: Function parameter or member 'key_stuck_irq' not described in 'pmic8xxx_kp'
drivers/input/keyboard/pmic8xxx-keypad.c:106: warning: Function parameter or member 'keycodes' not described in 'pmic8xxx_kp'
drivers/input/keyboard/pmic8xxx-keypad.c:106: warning: Function parameter or member 'dev' not described in 'pmic8xxx_kp'
drivers/input/keyboard/pmic8xxx-keypad.c:106: warning: Function parameter or member 'keystate' not described in 'pmic8xxx_kp'
drivers/input/keyboard/pmic8xxx-keypad.c:106: warning: Function parameter or member 'stuckstate' not described in 'pmic8xxx_kp'
drivers/input/keyboard/pmic8xxx-keypad.c:106: warning: Function parameter or member 'ctrl_reg' not described in 'pmic8xxx_kp'
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201104162427.2984742-21-lee.jones@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fixes the following W=1 kernel build warning(s):
drivers/input/keyboard/nomadik-ske-keypad.c:71: warning: Function parameter or member 'pclk' not described in 'ske_keypad'
drivers/input/keyboard/nomadik-ske-keypad.c:71: warning: Function parameter or member 'ske_keypad_lock' not described in 'ske_keypad'
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201104162427.2984742-20-lee.jones@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
platform_get_irq() returns -ERRNO on error. In such case casting to
unsigned and comparing to 0 would pass the check.
Fixes: 7abf38d6d1 ("Input: twl4030-keypad - add device tree support")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200828145744.3636-3-krzk@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
platform_get_irq() returns -ERRNO on error. In such case comparison
to 0 would pass the check.
Fixes: f3a1ba60db ("Input: omap4-keypad - use platform device helpers")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200828145744.3636-2-krzk@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
platform_get_irq() returns -ERRNO on error. In such case comparison
to 0 would pass the check.
Fixes: 60214f058f ("Input: ep93xx_keypad - update driver to new core support")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200828145744.3636-1-krzk@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input updates from Dmitry Torokhov:
- an update to Elan touchpad controller driver supporting newer ICs
with enhanced precision reports and a new firmware update process
- an update to EXC3000 touch controller supporting additional parts
- assorted driver fixups
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (27 commits)
Input: exc3000 - add support to query model and fw_version
Input: exc3000 - add reset gpio support
Input: exc3000 - add EXC80H60 and EXC80H84 support
dt-bindings: touchscreen: Convert EETI EXC3000 touchscreen to json-schema
Input: sentelic - fix error return when fsp_reg_write fails
Input: alps - remove redundant assignment to variable ret
Input: ims-pcu - return error code rather than -ENOMEM
Input: elan_i2c - add ic type 0x15
Input: atmel_mxt_ts - only read messages in mxt_acquire_irq() when necessary
Input: uinput - fix typo in function name documentation
Input: ati_remote2 - add missing newlines when printing module parameters
Input: psmouse - add a newline when printing 'proto' by sysfs
Input: synaptics-rmi4 - drop a duplicated word
Input: elan_i2c - add support for high resolution reports
Input: elan_i2c - do not constantly re-query pattern ID
Input: elan_i2c - add firmware update info for ICs 0x11, 0x13, 0x14
Input: elan_i2c - handle firmware updated on newer ICs
Input: elan_i2c - add support for different firmware page sizes
Input: elan_i2c - fix detecting IAP version on older controllers
Input: elan_i2c - handle devices with patterns above 1
...
This converts all the existing DECLARE_TASKLET() (and ...DISABLED)
macros with DECLARE_TASKLET_OLD() in preparation for refactoring the
tasklet callback type. All existing DECLARE_TASKLET() users had a "0"
data argument, it has been removed here as well.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
Pull input updates from Dmitry Torokhov:
- a new driver for the Azoteq IQS269A capacitive touch controller
- a new driver for the Cypress CY8CTMA140 touchscreen
- updates to Elan and ft5x06 touchscreen drivers
- assorted driver fixes
- msm-vibrator has been removed as we have a more generic solution
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (28 commits)
Input: adi - work around module name confict
Input: iqs269a - add missing I2C dependency
Input: elants - refactor elants_i2c_execute_command()
Input: elants - override touchscreen info with DT properties
Input: elants - remove unused axes
Input: add support for Azoteq IQS269A
dt-bindings: input: Add bindings for Azoteq IQS269A
Input: imx_sc_key - use devm_add_action_or_reset() to handle all cleanups
Input: remove msm-vibrator driver
dt-bindings: Input: remove msm-vibrator
Input: elants_i2c - provide an attribute to show calibration count
Input: introduce input_mt_report_slot_inactive()
dt-bindings: input: touchscreen: elants_i2c: convert to YAML
Input: add driver for the Cypress CY8CTMA140 touchscreen
dt-bindings: touchscreen: Add CY8CTMA140 bindings
Input: edt-ft5x06 - prefer asynchronous probe
Input: edt-ft5x06 - improve power management operations
Input: edt-ft5x06 - move parameter restore into helper
Input: edt-ft5x06 - fix get_default register write access
Input: atkbd - receive and use physcode->keycode mapping from FW
...
Use devm_add_action_or_reset() to handle all cleanups of failure in
.probe and .remove, then .remove callback can be dropped.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1584082751-17047-1-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v5.6' into next
Sync up with mainline to get device tree and other changes.
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200507185347.GA14499@embeddedor
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Allow the firmware to specify the mapping between the scan code and the
linux keycode. This takes the form of a "linux,keymap" property which is
an array of u32 values, each value specifying mapping for a key.
Signed-off-by: Rajat Jain <rajatja@google.com>
Link: https://lore.kernel.org/r/20200427210259.91330-3-rajatja@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Certain keyboards have their top-row keys intended for actions such as
"Browser back", "Browser Refresh", "Fullscreen" etc as their primary mode,
thus they will send scan codes for those actions. Further, they don't
have a dedicated "Fn" key so don't have the capability to generate
function key codes (e.g. F1, F2 etc..). However in this case, if
userspace still wants to "synthesize" those function keys using the top
row action keys, it needs to know the physical position of the top row
keys. (Essentially a mapping between usage codes and a physical location
in the top row).
This patch enhances the atkbd driver to receive such a mapping from the
firmware / device tree, and expose it to userspace in the form of a
function-row-physmap attribute. The attribute would be a space separated
ordered list of physical codes, for the keys in the function row, in
left-to-right order.
The attribute will only be present if the kernel knows about such mapping,
otherwise the attribute shall not be visible.
Signed-off-by: Rajat Jain <rajatja@google.com>
Link: https://lore.kernel.org/r/20200427210259.91330-2-rajatja@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
According to the file name and Kconfig, a 'k' is missing in this driver
name. It should be "dlink-dir685-touchkeys".
Fixes: 131b3de701 ("Input: add D-Link DIR-685 touchkeys driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200412213937.5287-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch makes use of cros_ec_cmd_xfer_status() instead of
cros_ec_cmd_xfer(). In this case there is no advantage of doing this
apart from that we want to make cros_ec_cmd_xfer() a private function
for the EC protocol and let people only use the
cros_ec_cmd_xfer_status() to return Linux standard error codes.
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20200414210434.1534982-1-enric.balletbo@collabora.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- Add support for IQS620A/621/622/624/625 Azoteq IQS62X Sensors
- New Device Support
- Add support for ADC, IRQ, Regulator, RTC and WDT to Ricoh RN5T618 PMIC
- Add support for Comet Lake to Intel LPSS
- New Functionality
- Add support for Charger Detection to Spreadtrum SC27xx PMICs
- Add support for Interrupt Polarity to Dialog Semi DA9062/61 PMIC
- Add ACPI enumeration support to Diolan DLN2 USB Adaptor
- Fix-ups
- Device Tree; iqs62x, rn5t618, cros_ec_dev, stm32-lptimer, rohm,bd71837, rohm,bd71847
- I2C registration; rn5t618
- Kconfig; MFD_CPCAP, AB8500_CORE, MFD_WM8994, MFD_WM97xx, MFD_STPMIC1
- Use flexible-array members; omap-usb-tll, qcom-pm8xxx
- Remove unnecessary casts; omap-usb-host, omap-usb-tll
- Power (suspend/resume/poweroff) enhancements; rk808
- Improve error/sanity checking; dln2
- Use snprintf(); aat2870-core
- Bug Fixes
- Fix PCI IDs; intel-lpss-pci
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Merge tag 'mfd-next-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull mfd updates from Lee Jones:
"New Drivers:
- Add support for IQS620A/621/622/624/625 Azoteq IQS62X Sensors
New Device Support:
- Add support for ADC, IRQ, Regulator, RTC and WDT to Ricoh RN5T618 PMIC
- Add support for Comet Lake to Intel LPSS
New Functionality:
- Add support for Charger Detection to Spreadtrum SC27xx PMICs
- Add support for Interrupt Polarity to Dialog Semi DA9062/61 PMIC
- Add ACPI enumeration support to Diolan DLN2 USB Adaptor
Fix-ups:
- Device Tree; iqs62x, rn5t618, cros_ec_dev, stm32-lptimer, rohm,bd71837, rohm,bd71847
- I2C registration; rn5t618
- Kconfig; MFD_CPCAP, AB8500_CORE, MFD_WM8994, MFD_WM97xx, MFD_STPMIC1
- Use flexible-array members; omap-usb-tll, qcom-pm8xxx
- Remove unnecessary casts; omap-usb-host, omap-usb-tll
- Power (suspend/resume/poweroff) enhancements; rk808
- Improve error/sanity checking; dln2
- Use snprintf(); aat2870-core
Bug Fixes:
- Fix PCI IDs in intel-lpss-pci"
* tag 'mfd-next-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (33 commits)
mfd: intel-lpss: Fix Intel Elkhart Lake LPSS I2C input clock
mfd: aat2870: Use scnprintf() for avoiding potential buffer overflow
mfd: dln2: Allow to be enumerated via ACPI
mfd: da9062: Add support for interrupt polarity defined in device tree
dt-bindings: bd718x7: Yamlify and add BD71850
mfd: dln2: Fix sanity checking for endpoints
mfd: intel-lpss: Add Intel Comet Lake PCH-V PCI IDs
mfd: sc27xx: Add USB charger type detection support
dt-bindings: mfd: Document STM32 low power timer bindings
mfd: rk808: Convert RK805 to shutdown/suspend hooks
mfd: rk808: Reduce shutdown duplication
mfd: rk808: Stop using syscore ops
mfd: rk808: Ensure suspend/resume hooks always work
mfd: rk808: Always use poweroff when requested
mfd: omap: Remove useless cast for driver.name
mfd: Kconfig: Fix some misspelling of the word functionality
mfd: pm8xxx: Replace zero-length array with flexible-array member
mfd: omap-usb-tll: Replace zero-length array with flexible-array member
mfd: cpcap: Fix compile if MFD_CORE is not selected
mfd: cros_ec: Check DT node for usbpd-notify add
...
This patch adds key and switch support for the Azoteq IQS620A,
IQS621, IQS622, IQS624 and IQS625 multi-function sensors.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Pull input fixes from Dmitry Torokhov:
- a fix to generate proper timestamps on key autorepeat events that
were broken recently
- a fix for Synaptics driver to only activate reduced reporting mode
when explicitly requested
- a new keycode for "selective screenshot" function
- other assorted fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: fix stale timestamp on key autorepeat events
Input: move the new KEY_SELECTIVE_SCREENSHOT keycode
Input: avoid BIT() macro usage in the serio.h UAPI header
Input: synaptics-rmi4 - set reduced reporting mode only when requested
Input: synaptics - enable RMI on HP Envy 13-ad105ng
Input: allocate keycode for "Selective Screenshot" key
Input: tm2-touchkey - add support for Coreriver TC360 variant
dt-bindings: input: add Coreriver TC360 binding
dt-bindings: vendor-prefixes: Add Coreriver vendor prefix
Input: raydium_i2c_ts - fix error codes in raydium_i2c_boot_trigger()
The Coreriver TouchCore 360 is like the midas board touchkey, but it is
using a fixed regulator.
Signed-off-by: Nick Reitemeyer <nick.reitemeyer@web.de>
Link: https://lore.kernel.org/r/20200121141525.3404-3-nick.reitemeyer@web.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input updates from Dmitry Torokhov:
- a few drivers have been updated to use flexible-array syntax instead
of GCC extension
- ili210x touchscreen driver now supports the 2120 protocol flavor
- a couple more of Synaptics devices have been switched over to RMI4
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: cyapa - replace zero-length array with flexible-array member
Input: tca6416-keypad - replace zero-length array with flexible-array member
Input: gpio_keys_polled - replace zero-length array with flexible-array member
Input: synaptics - remove the LEN0049 dmi id from topbuttonpad list
Input: synaptics - enable SMBus on ThinkPad L470
Input: synaptics - switch T470s to RMI4 by default
Input: gpio_keys - replace zero-length array with flexible-array member
Input: goldfish_events - replace zero-length array with flexible-array member
Input: psmouse - switch to using i2c_new_scanned_device()
Input: ili210x - add ili2120 support
Input: ili210x - fix return value of is_visible function
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Link: https://lore.kernel.org/r/20200214172022.GA27490@embeddedor
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Link: https://lore.kernel.org/r/20200214171907.GA26588@embeddedor
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Link: https://lore.kernel.org/r/20200213002600.GA31916@embeddedor.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Link: https://lore.kernel.org/r/20200213002430.GA31056@embeddedor.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- remove ioremap_nocache given that is is equivalent to
ioremap everywhere
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Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
Pull ioremap updates from Christoph Hellwig:
"Remove the ioremap_nocache API (plus wrappers) that are always
identical to ioremap"
* tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap:
remove ioremap_nocache and devm_ioremap_nocache
MIPS: define ioremap_nocache to ioremap
Pull input fixes from Dmitry Torokhov:
"Just a few small fixups here"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: imx_sc_key - only take the valid data from SCU firmware as key state
Input: add safety guards to input_set_keycode()
Input: input_event - fix struct padding on sparc64
Input: uinput - always report EPOLLOUT
ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
When reading key state from SCU, the response data from SCU firmware
is 4 bytes due to MU message protocol, but ONLY the first byte is the
key state, other 3 bytes could be some dirty data, so we should ONLY
take the first byte as key state to avoid reporting incorrect state.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Fixes: 688f1dfb69 ("Input: keyboard - imx_sc: Add i.MX system controller key support")
Link: https://lore.kernel.org/r/1576202909-1661-1-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull more input updates from Dmitry Torokhov:
- fixups for Synaptics RMI4 driver
- a quirk for Goodinx touchscreen on Teclast tablet
- a new keycode definition for activating privacy screen feature found
on a few "enterprise" laptops
- updates to snvs_pwrkey driver
- polling uinput device for writing (which is always allowed) now works
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: synaptics-rmi4 - don't increment rmiaddr for SMBus transfers
Input: synaptics-rmi4 - re-enable IRQs in f34v7_do_reflash
Input: goodix - add upside-down quirk for Teclast X89 tablet
Input: add privacy screen toggle keycode
Input: uinput - fix returning EPOLLOUT from uinput_poll
Input: snvs_pwrkey - remove gratuitous NULL initializers
Input: snvs_pwrkey - send key events for i.MX6 S, DL and Q
Gratuitous NULL initializers rarely help and often prevent compiler
from warning about using uninitialized variable. Let's remove them.
Reviewed-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/20191125211407.GA97812@dtor-ws
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* CrOS EC / MFD / IIO
- Contains tag-ib-chrome-mfd-iio-input-5.5, which is the first part of a
series from Gwendal to refactor sensor code between MFD, CrOS EC, iio
and input in order to add a new sensorhub driver and FIFO processing
* Wilco EC:
- Add support for Dell's USB PowerShare policy control, keyboard
backlight LED driver, and a new test_event file.
- Fixes use after free in wilco_ec's telemetry driver.
* Misc:
- bugfix in cros_usbpd_logger (missing destroy workqueue).
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Merge tag 'tag-chrome-platform-for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform changes from Benson Leung:
"CrOS EC / MFD / IIO:
- Contains tag-ib-chrome-mfd-iio-input-5.5, which is the first part
of a series from Gwendal to refactor sensor code between MFD, CrOS
EC, iio and input in order to add a new sensorhub driver and FIFO
processing
Wilco EC:
- Add support for Dell's USB PowerShare policy control, keyboard
backlight LED driver, and a new test_event file.
- Fixes use after free in wilco_ec's telemetry driver.
Misc:
- bugfix in cros_usbpd_logger (missing destroy workqueue)"
* tag 'tag-chrome-platform-for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: wilco_ec: fix use after free issue
platform/chrome: cros_ec: Add Kconfig default for cros-ec-sensorhub
Revert "Input: cros_ec_keyb: mask out extra flags in event_type"
Revert "Input: cros_ec_keyb - add back missing mask for event_type"
platform/chrome: cros_ec: handle MKBP more events flag
platform/chrome: cros_ec: Do not attempt to register a non-positive IRQ number
platform/chrome: cros-ec: Record event timestamp in the hard irq
mfd / platform / iio: cros_ec: Register sensor through sensorhub
iio / platform: cros_ec: Add cros-ec-sensorhub driver
mfd / platform: cros_ec: Add sensor_count and make check_features public
platform/chrome: cros_ec: Put docs with the code
platform/chrome: cros_usbpd_logger: add missed destroy_workqueue in remove
platform/chrome: cros_ec: Fix Kconfig indentation
platform/chrome: wilco_ec: Add keyboard backlight LED support
platform/chrome: wilco_ec: Add charging config driver
platform/chrome: wilco_ec: Add Dell's USB PowerShare Policy control
platform/chrome: wilco_ec: Add debugfs test_event file
The first generation i.MX6 processors does not send an interrupt when the
power key is pressed. It sends a power down request interrupt if the key is
released before a hard shutdown (5 second press). This should allow
software to bring down the SoC safely.
For this driver to work as a regular power key with the older SoCs, we need
to send a keypress AND release when we get the power down request irq.
Signed-off-by: Robin van der Gracht <robin@protonic.nl>
Link: https://lore.kernel.org/r/20191125161210.8275-1-robin@protonic.nl
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
$ sed -e 's/^ /\t/' -i */Kconfig
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/1574306373-29581-1-git-send-email-krzk@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This reverts commit d096aa3eb6.
This patch is not needed anymore since we clear EC_MKBP_HAS_MORE_EVENTS
flag before calling the notifiers in patch
"9d9518f5b52a (platform: chrome: cros_ec: handle MKBP more events flag)"
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
This reverts commit 62c3801619.
This patch is not needed anymore since we clear EC_MKBP_HAS_MORE_EVENTS
flag before calling the notifiers in patch
"9d9518f5b52a (platform: chrome: cros_ec: handle MKBP more events flag)"
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
